Pin Layout; Pin Function - JVC KD-S7R Service Manual

TA2109F-X (IC521) : RF amp.

1. Pin layout

24
1
2. Block diagram
SBAD
13
FEO
14
FEN
15
VRO
16
RFRP
17
RFIS
18
RFGO
19
RFGC
20
AGCI
21
re=130 ohm
RFO
22
GND
23
RFN
24
3.3k ohm

3. Pin function

Pin
Symbol I/O
No.
1 Vcc - Power supply input terminal
2 FNI I Main beam I-V amp input terminal
3 FPI I Main beam I-V amp input terminal
4 TPI I Sub beam I-v input terminal
5 TNI I Sub beam I-V input terminal
6 MDI I Monitor photo diode amp input terminal
LDO O Laser diode amp output terminal
7
SEL I Laser diode control signal input terminal
8
TEB I T. error balance adj. signal input terminal
9
2VRO O Reference voltage output terminal
10
TEN I TE amp negative input terminal
11
TEO TE error signal output terminal
12 O
13
12
15k ohm
15k ohm
20uA
50k ohm
10k ohm
36pF
7.96k ohm
10k ohm
21k ohm
21k ohm
50uA
20k ohm
12k ohm
12k ohm
20k ohm
PEAK
BOTTOM
23.5k ohm
12k ohm
1.53k ohm
3.3k ohm
Pin function
30k ohm
7.67k ohm
10k ohm
10k ohm
30k ohm
10k ohm
21k ohm 29k ohm
24k ohm 24k ohm
47k ohm
1.74k ohm
SW2
SW3
180k ohm
13k ohm
20pF
180k ohm
20pF
20k ohm
180k ohm
40pF
60k ohm
20k ohm
60k ohm
180k ohm 40pF
Pin
Symbol I/O
No.
13 SBAD O Sub beam adder signal output terminal
14 FEO O Focus error signal output terminal
15 FEN I FE amp negative input terminal
16 VRO O Reference voltage (VREF) output terminal
17 RFRP O Track count signal output terminal
RFIS I RFRP detect circuit input terminal
18
RFGO O RF gain signal output terminal
19
RFGC I RF amplitude adj. control signal input terminal
20
AGCI I RF signal amplitude adj. amp input terminal
21
RFO O RF signal output terminal
22
GND - Ground terminal
23
RFN RF amp negative input terminal
24 I
TEO
12
20pF
TEN
11
2VRO
10
TEB
9
3 STATE
DET.
SEL
SW1
8
LCD
LDO
1k ohm
7
680 ohm
MDI
6
2.12k ohm
TNI
I-I 5
TPI
I-I 4
FPI
3
20k ohm
FNI
2
20k ohm
Vcc
1
Pin function
KD-S7R
1-27